From 6309e51ea32d64524431ee65c49eecd44390da8f Mon Sep 17 00:00:00 2001 From: Zbigniew Jędrzejewski-Szmek Date: Thu, 20 Oct 2016 00:27:46 -0400 Subject: shared/install: fix %u expansion when running under sudo MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Test case: [Install] DefaultInstance=bond1 WantedBy= foobar-U-%U.device WantedBy= foobar-u-%u.device $ sudo systemctl --root=/ enable testing4@.service (before) Created symlink /etc/systemd/system/foobar-U-0.device.wants/testing4@bond1.service → /etc/systemd/system/testing4@.service. Created symlink /etc/systemd/system/foobar-u-zbyszek.device.wants/testing4@bond1.service → /etc/systemd/system/testing4@.service. (after) Created symlink /etc/systemd/system/foobar-U-0.device.wants/testing4@bond1.service → /etc/systemd/system/testing4@.service. Created symlink /etc/systemd/system/foobar-u-root.device.wants/testing4@bond1.service → /etc/systemd/system/testing4@.service. It doesn't make much sense to use a different user for %U and %u. --- src/shared/install-printf.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c index 267762d84f..cbdf66827f 100644 --- a/src/shared/install-printf.c +++ b/src/shared/install-printf.c @@ -108,9 +108,13 @@ static int specifier_user_name(char specifier, void *data, void *userdata, char /* If we are UID 0 (root), this will not result in NSS, * otherwise it might. This is good, as we want to be able to * run this in PID 1, where our user ID is 0, but where NSS - * lookups are not allowed. */ + * lookups are not allowed. - t = getusername_malloc(); + * We don't user getusername_malloc() here, because we don't want to look + * at $USER, to remain consistent with specifer_user_id() below. + */ + + t = uid_to_name(getuid()); if (!t) return -ENOMEM; -- cgit v1.2.3-54-g00ecf